Abstract
A low phase noise, low power, and wideband CMOS LC voltage controlled oscillator (VCO) with transformer feedback is presented. The measurement result of the VCO exhibits a tuning range of 28% form 4.39GHz to 5.8GHz at the supply voltage of 0.8 V. The figure of merit, core power consumption and output power are −193.1, 4.4mW and −2.3 dBm, respectively. The phase noise is −124.3 dBc/Hz at the operation frequency of 5.8 GHz. The VCO is fabricated in TSMC 0.18fim 1P6M CMOS process.
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